Sedar issues SDR as a cryptographic currency by using an ERC 20 token and a smart protocol on a blockchain to gurantee the highest possible trust and enable peer to peer contact. ERC20 tokens are digital coins you can send through the Internet. Compared to other alternatives, ERC20 have a number of advantages. ERC20 uses peer-to-peer technology, so coins are transferred directly from person to person via the net without going through central authority or bank; everyone can take part.
This means that the fees are much lower, you can use them in every country, your account CAN NOT be frozen and there is no arbitrary limits.
Get started with ERC20